Marrielle B. Van Rossum

Marrielle B. Van Rossum practices with Devine, Millimet & Branch, P.A. and focuses on litigation involving health care providers, hospitals, and medical practices. She defends clients in medical negligence lawsuits and before New Hampshire professional licensure boards. Her work also includes helping clients reduce the risk of litigation through employment guidance, policy review, and pre-suit problem solving. She serves health care organizations and other clients facing disputes, regulatory concerns, and sensitive workplace or patient-related issues.

Marrielle attended St. Lawrence University, graduating cum laude in 2007, and studied at Université de Rouen in 2005. She received her law degree from Villanova University Charles Widger School of Law in 2012. She is admitted in New Hampshire, Massachusetts, and Maine, as well as federal district and appellate courts. Her education and multistate admissions support a litigation practice involving health care, employment, insurance, professional conduct, and other matters that can cross regulatory and jurisdictional lines.

Marrielle has represented hospitals ranging from major teaching institutions to smaller Critical Access Hospitals. She assists hospitals, practices, and providers with medical negligence defense, licensure-board matters, and issues that can be resolved before litigation begins. She has also helped hospitals and social workers pursue guardianships for patients and residents when long-term care placement or end-of-life decisions create legal obstacles. Her experience extends to unemployment claims, anti-harassment training, and workplace discrimination matters for nonprofit and private organizations.

Marrielle B. Van Rossum has been recognized for health care law, medical malpractice defense, and litigation-related work, including listings in The Best Lawyers in America and prior New England Rising Stars recognition. She was also named to the Union Leader’s 40 Under Forty in 2025. Her practice emphasizes efficient, collaborative, and thoughtful problem solving for clients facing litigation, licensing proceedings, employment concerns, guardianship needs, and other legal risks within and outside the health care system.

Law Office Affiliations

• Of Counsel, Devine, Millimet & Branch, P.A.
• Member, New Hampshire Bar Association
• Member, Massachusetts Bar Association
• Member, Maine State Bar Association
• Member, New Hampshire Women’s Bar Association
• Member, Tri-State Defense Lawyers Association
• Board Member, Greater Seacoast Community Health
• Board Member, Hidden Pond Farm Equine Rescue (2019-2026)
• Alumni Advisory Board Member, Berwick Academy (2017-2021)
• Development Committee, Families First Health and Support Center (2017-2020)
• Member, Northern New England Society for Healthcare Risk Management

Licensed State

• New Hampshire
• Massachusetts
• Maine

Education

• Villanova University Charles Widger School of Law
  Juris Doctor (JD)
• St. Lawrence University
  Bachelor’s Degree

Awards & Badges